US6318203B1 - Drive for rotating object such as a roller, shaft, plate or the like - Google Patents

Drive for rotating object such as a roller, shaft, plate or the like Download PDF

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Publication number
US6318203B1
US6318203B1 US09/222,726 US22272698A US6318203B1 US 6318203 B1 US6318203 B1 US 6318203B1 US 22272698 A US22272698 A US 22272698A US 6318203 B1 US6318203 B1 US 6318203B1
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US
United States
Prior art keywords
drive
lever
gear
tooth
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/222,726
Other languages
English (en)
Inventor
Erich Harter
Alfred Hitzler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VENTA-LUFTWAESCHER GmbH
Original Assignee
Venta Airwasher LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Venta Airwasher LLC filed Critical Venta Airwasher LLC
Priority to US09/222,726 priority Critical patent/US6318203B1/en
Assigned to VENTA AIRWASHER, LLC. reassignment VENTA AIRWASHER, LLC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HARTER, ERICH, HITZLER, ALFRED
Priority to DE19958078A priority patent/DE19958078A1/de
Priority to CN99815162A priority patent/CN1099534C/zh
Priority to JP2000591349A priority patent/JP4540852B2/ja
Priority to KR1020017008255A priority patent/KR100646717B1/ko
Priority to PCT/IB1999/002063 priority patent/WO2000039485A1/de
Priority to AT99959636T priority patent/ATE246321T1/de
Priority to DE59906459T priority patent/DE59906459D1/de
Priority to EP99959636A priority patent/EP1141583B1/de
Priority to CA002347672A priority patent/CA2347672C/en
Priority to NO20011145A priority patent/NO320077B1/no
Publication of US6318203B1 publication Critical patent/US6318203B1/en
Application granted granted Critical
Assigned to VENTA-LUFTWAESCHER GMBH reassignment VENTA-LUFTWAESCHER GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VENTA AIRWASHER, LLC
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003—Step-by-step mechanisms for rotary motion
    • F16H31/004—Step-by-step mechanisms for rotary motion with pawls driven by a rotary cam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/12—Apparatus, e.g. holders, therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/50—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by odorisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19698—Spiral
    • Y10T74/19828—Worm

Definitions

  • the invention relates to a drive for a rotating article
  • This drive has the advantage that it is essentially insensitive to contaminants which occur due to a liquid in which rollers, shafts or the like rotate in an air-humidifying and cleaning unit, a deodorizer or the like.
  • the gear is wetted in the process by the liquid due to the rotational motion in the liquid, the only point of contact with the further components of the mechanism is in that part of the lever which meshes with the gear.
  • this part of the lever is simple to clean as a rule.
  • a disadvantage of this mechanism consists in the fact that, in particular due to the occurrence of production tolerances of the drive parts, smooth, quiet running of the rotating article is impaired from time to time, since, in particular, the meshing lever may become stuck with the gear.
  • the object of the invention is to provide a drive which has improved synchronism and is in particular less sensitive to production tolerances.
  • the invention is based on a drive for a rotating article for a roller, shaft, plate or the like, in particular for a deodorizer, an air humidifier or an air-cleaning unit or the like, which has the following features.
  • a movably mounted lever, a gear which is connected to the rotating article in a rotationally fixed manner, and a lever mechanism means for a driving motion, meshing with the gear, of the lever in order to rotate the gear, are provided with the lever having a tip for meshing with the teeth of the gear.
  • the central idea of the invention is to design the tip in the form of a tooth, the shape of this tooth and that of the teeth of the gear as well as the lever mechanism being matched to one another in such a way that the tooth flanks of the tooth on the at least one lever and the respectively meshing tooth on the gear roll on one another during the driving motion.
  • the shape of the tooth on the lever and that of the teeth of the gear as well as the lever mechanism be matched to one another in such a way that the tooth flanks of the tooth on the at least one lever and the respectively meshing tooth on the gear, during the driving motion, have a point of contact at which the flanks roll on one another without radial sliding (rolling point).
  • the shape of the tooth on the lever and that of the teeth on the gear are preferably designed according to the rules of tooth engagement as an involute, cycloidal or circular arc tooth system or as a lantern tooth system, in which the tooth on the lever has, for example, the shape of a pin. In this way, an essentially constant transmission ratio between lever mechanism and gear can be realized.
  • the lever mechanism contains guide surfaces for the lever for the sliding guidance of the lever.
  • the lever in a guided manner, can perform, for example, a forward motion, a reverse motion and a pivoting motion.
  • the lever mechanism comprises an eccentric drive for the lever.
  • the operating principle of the inverted slider crank in which the longitudinal guide is located in the lever, and, for example, a pin secured in the housing of the lever mechanism engages in this longitudinal guide, may also be applied in another embodiment.
  • this eccentric drive have a drive shaft for the lever, and this drive shaft is arranged eccentrically on a gear.
  • the gear may be driven continuously, preferably by means of a worm.
  • extreme transmission ratios are possible on the one hand, which is necessary in particular during use in a deodorizer or air washer according to the invention, where only one motor is used for the direct drive of the fan and the drive of one or two plate stacks.
  • a worm gear unit constitutes a so-called self-locking gear unit, as a result of which the at least one lever is locked against undesirable motion.
  • the drive shaft is attached directly and eccentrically to a gear which is driven by a worm.
  • the worm is preferably connected to the drive shaft of a motor via an elastic coupling.
  • the drive shaft need not be absolutely exactly in alignment with the worm shaft. In this case, larger tolerances during the production of a drive according to the invention are possible, which, inter alia, brings about a cost saving.
  • the at least one lever is elastically mounted between the guide surfaces of the lever mechanism.
  • the lever is prestressed in the lever mechanism and exhibits no play even where there are production tolerances. Excessive play could, in the worst case, lead to the tooth of a meshing lever colliding with a tooth of the gear or to the teeth sticking.
  • the lever between the guide surfaces at least part of the outer contour of the lever gripped by the guide surfaces is elastically resilient.
  • the outer contour is designed as a narrow frame.
  • this contour region consequently has elastic properties.
  • the frame is interrupted, a spring element being fitted in place at the point of interruption.
  • FIG. 1 shows a side view of two plate stacks, arranged next to one another, of an air-humidifying unit with drives according to the invention arranged thereon in each case, in schematic side view,
  • FIGS. 2 a-e show a schematic cross-sectional detail of a drive according to the invention in accordance with FIG. 1 for different lever positions
  • FIGS. 3 a-c show a lever according to the invention in two plan views with and without spring element and in a side view
  • FIG. 4 shows a worm wheel with eccentrically arranged drive shaft for a lever according to FIGS. 3 a to c in a schematic plan view
  • FIG. 5 a shows a detail of a drive according to the invention in accordance with FIGS. 2 a to e but with three drive levers for one position
  • FIG. 5 b shows a drive according to the invention in accordance with FIG. 5 a in longitudinal section.
  • FIG. 1 Two plate stacks 1 , 2 , mounted in parallel, of an air-humidifying unit with drives 3 according to the invention arranged thereon are shown in FIG. 1 in a schematic side view.
  • the plate stacks 1 , 2 consist, for example, of circular disks arranged one behind the other in a lamellar manner.
  • the plate stacks 1 , 2 are normally mounted on a trough(not shown), in which water, if need be with an additive, is located as a rule, the plate stacks plunging into the water during a rotation about axes 4 , 5 .
  • a housing cover on which, for example, a fan with drive motor, which is connected to the two drives 3 according to the invention via an elastic coupling 6 , is arranged.
  • FIGS. 2 a-e the drive 3 according to the invention is shown as an enlarged detail in sectional view for different lever positions.
  • These figures show a lever mechanism means 7 , which interacts with a toothed ring 8 , which is arranged on the end face of the plate stack 1 .
  • the lever mechanism 7 is an arrangement having two drive levers 9 , 10 .
  • the drive levers 9 , 10 in each case have a tip 11 , 12 of tooth-shaped design as well as a location opening 13 , 14 (also see FIGS. 3 a and b ) for two drive journals 15 , 16 in each case.
  • the drive journals 15 , 16 are attached to the two end faces of a worm wheel 17 in such a way as to be eccentrically offset by 180° and thus form an eccentric bearing seat for the drive levers 9 , 10 slipped into position thereon via the location openings 13 , 14 .
  • the worm wheel 17 has a rotary spindle 18 , which is mounted in the housing of the lever mechanism 7 and is in engagement with a worm 19 .
  • the worm 19 is connected to, for example, a drive motor M via the elastic coupling 6 .
  • the drive levers 9 , 10 are moved or pivoted back and forth in the housing of the lever mechanism 7 via the location openings 13 , 14 , of the drive levers 9 , 10 mounted on the drive.
  • the outer contour of the drive levers 9 , 10 bears against guide surfaces 20 , 21 of the housing of the lever mechanism 7 .
  • the front drive lever 10 (shown in solid lines) is in mesh with the tooth system of the toothed ring 8
  • the second drive lever 9 shown in broken lines arranged behind it has been completely retracted from the tooth system of the toothed ring 8
  • the desired motion of the tooth-shaped tips 11 , 12 of the drive levers 9 , 10 results essentially from the geometric distances between the eccentrically arranged drive journals 15 , 16 as well as from the shape and the distance between the guide surfaces 20 , 21 .
  • the path curve of the tooth-shaped tips 11 , 12 appears as a coupler curve of the slider-crank mechanism which is thus realized.
  • FIGS. 2 a to e The motion of the drive levers 9 , 10 for obtaining a rotary motion of the toothed ring 8 , arranged on the plate stack 1 , in the direction of the arrow is depicted in different angular positions of the worm wheel 17 in FIGS. 2 a to e .
  • each figure corresponds to a state of the lever position for a rotation of the worm wheel 17 through 45°. That is to say, FIG. 2 e represents a rotation through 180°, provided FIG. 2 a is established at 0°.
  • the shape of the teeth 22 of the toothed ring 8 and of the tooth-shaped tip 11 , 12 is designed in such a way that the intermeshing teeth realize, by way of example, a cycloidal tooth system.
  • the motion of the drive levers 9 , 10 is coordinated by the eccentric mounting and the guide surfaces on the housing of the lever mechanism in such a way that the tooth flanks roll on one another.
  • the drive lever 10 is again shown in detail by way of example in FIGS. 3 a to c .
  • the outer contour of the drive lever 10 is designed as a narrow frame 23 over a large region on one side.
  • the frame 23 is interrupted in front of the location opening 13 and has location pins 24 for a compression spring 25 (only shown in FIG. 3 a ).
  • the front region of the drive lever 10 is elastically resilient on this side. This enables the drive lever 10 or the drive lever 9 of identical design to be inserted with prestress into the housing of the lever mechanism 7 .
  • the asymmetrical frame formation enables the lever to be supported on a guide surface without yielding. This is preferably the side which absorbs the major forces for the further motion of the gear.
  • the worm wheel 17 with the drive journals 15 , 16 arranged on both end faces in such a way as to be eccentrically offset by 180° is again shown as a detail in FIG. 4 .
  • the mounting of the worm wheel 17 is effected via bearing spindles 18 , which project from the eccentrically arranged drive shafts 15 , 16 .
  • the tips 11 , 12 of the drive levers 9 , 10 are directed downward, so that liquid, which is delivered to the lever tips 11 , 12 by the plunging of the toothed ring 8 into a liquid bath, runs off again down to the toothed ring 8 .
  • the only locations which can therefore connect with the liquid of the bath are merely the tooth-shaped tips 11 , 12 of the drive levers 9 , 10 .
  • dismantling the unit for cleaning work is possible in a simple manner, since, with removal of the cover (not shown), only the plate stacks 1 , 2 are still located in the trough (not shown).
  • the drive shown for a plate stack 1 , 2 can be used outside an air-humidifying unit according to the invention.
  • the system shown can be readily used on any rotating article with which a drive system according to the invention offers advantages. This may be the case, in particular, in chemical production plants, where rollers, drums, heat exchangers or the like must likewise frequently rotate inside a liquid bath, and therefore the problem likewise arises that the drive must not come into contact with the, possibly aggressive, liquid or may only come into contact with said liquid at certain points.
  • the drive principle according to the invention may also be advantageously applied if a very high transmission ratio is to be realized between the drive shaft and the rotating article.
  • FIGS. 5 a and b A variant of a drive according to the invention is shown in FIGS. 5 a and b , three drive levers 26 , 27 , 28 being used in this drive instead of two.
  • drive journals are eccentrically offset on a worm wheel 29 not by 180° but by 120°. Further improved synchronism can be achieved by this embodiment, which is shown in longitudinal section in FIG. 5 b to illustrate the position of the drive levers 26 , 27 , 28 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Transmission Devices (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • General Details Of Gearings (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Gear Transmission (AREA)
US09/222,726 1998-12-29 1998-12-29 Drive for rotating object such as a roller, shaft, plate or the like Expired - Lifetime US6318203B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US09/222,726 US6318203B1 (en) 1998-12-29 1998-12-29 Drive for rotating object such as a roller, shaft, plate or the like
DE19958078A DE19958078A1 (de) 1998-12-29 1999-12-02 Antrieb für einen rotierenden Gegenstand, wie eine Walze, Welle, Platte oder dergleichen
AT99959636T ATE246321T1 (de) 1998-12-29 1999-12-29 Antrieb für einen rotierenden gegenstand, wie eine walze, welle, platte oder dergleichen
CA002347672A CA2347672C (en) 1998-12-29 1999-12-29 Drive for a rotating article, such as a roller, shaft, plate or the like
KR1020017008255A KR100646717B1 (ko) 1998-12-29 1999-12-29 롤러, 샤프트, 디스크 등의 회전체용 구동부 메커니즘
PCT/IB1999/002063 WO2000039485A1 (de) 1998-12-29 1999-12-29 Antrieb für einen rotierenden gegenstand, wie eine walze, welle, platte oder dergleichen
CN99815162A CN1099534C (zh) 1998-12-29 1999-12-29 转动物体如辊子、轴和盘等用的传动装置
DE59906459T DE59906459D1 (de) 1998-12-29 1999-12-29 Antrieb für einen rotierenden gegenstand, wie eine walze, welle, platte oder dergleichen
EP99959636A EP1141583B1 (de) 1998-12-29 1999-12-29 Antrieb für einen rotierenden gegenstand, wie eine walze, welle, platte oder dergleichen
JP2000591349A JP4540852B2 (ja) 1998-12-29 1999-12-29 ローラ、シャフト、プレート等の回転物体用駆動装置
NO20011145A NO320077B1 (no) 1998-12-29 2001-03-07 Drivanordning for en roterende gjenstand, sasom en valse, aksel, plate e.l.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/222,726 US6318203B1 (en) 1998-12-29 1998-12-29 Drive for rotating object such as a roller, shaft, plate or the like

Publications (1)

Publication Number Publication Date
US6318203B1 true US6318203B1 (en) 2001-11-20

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ID=22833425

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/222,726 Expired - Lifetime US6318203B1 (en) 1998-12-29 1998-12-29 Drive for rotating object such as a roller, shaft, plate or the like

Country Status (10)

Country Link
US (1) US6318203B1 (enExample)
EP (1) EP1141583B1 (enExample)
JP (1) JP4540852B2 (enExample)
KR (1) KR100646717B1 (enExample)
CN (1) CN1099534C (enExample)
AT (1) ATE246321T1 (enExample)
CA (1) CA2347672C (enExample)
DE (2) DE19958078A1 (enExample)
NO (1) NO320077B1 (enExample)
WO (1) WO2000039485A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050401A1 (de) 2004-10-15 2006-04-20 Edgar Emele Kunststofftechnik Präzisionsformen GmbH & Co. KG Luftwäschegerät zur Luftreinigung und/oder Luftbefeuchtung
US10194516B2 (en) 2006-09-13 2019-01-29 Hypertherm, Inc. High access consumables for a plasma arc cutting system
US10098217B2 (en) 2012-07-19 2018-10-09 Hypertherm, Inc. Composite consumables for a plasma arc torch
US9662747B2 (en) 2006-09-13 2017-05-30 Hypertherm, Inc. Composite consumables for a plasma arc torch
US9560732B2 (en) 2006-09-13 2017-01-31 Hypertherm, Inc. High access consumables for a plasma arc cutting system
KR20160115305A (ko) 2015-03-26 2016-10-06 진정현 차량용 오일 수거장치
KR20200095099A (ko) 2019-01-31 2020-08-10 길은미 차량용 폐오일 수거장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738185A (en) * 1971-04-26 1973-06-12 Scott & Fetzer Co Sequential timer
US3765303A (en) * 1970-03-10 1973-10-16 Zahnradfabrik Friedrichshafen Involute tooth system for helical gears and finishing gear tool
US3834680A (en) * 1972-06-12 1974-09-10 W Walker Air conditioning apparatus for a vehicle cab
US4261930A (en) * 1976-06-14 1981-04-14 Byco Sales, Ltd. Evaporative cooling system
US5090261A (en) * 1989-11-21 1992-02-25 Asmo Co., Ltd. Geared motor
EP0838610A2 (de) 1994-10-17 1998-04-29 Venta Vertriebs Ag Antrieb für einen rotierenden Gegenstand wie Walze, Welle oder dergleichen
US5802921A (en) * 1996-08-13 1998-09-08 Rouverol; William S. Maximum power density gearing
US5816523A (en) * 1995-02-17 1998-10-06 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Gear mechanism and webbing retractor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR989820A (fr) * 1949-04-30 1951-09-13 Mécanisme réducteur de vitesses
DE3608367A1 (de) * 1986-03-13 1987-09-17 Ako Werke Gmbh & Co Antriebseinrichtung eines programmschaltwerks
US5894001A (en) * 1994-10-17 1999-04-13 Venta Vertriebs Ag Fragrance vaporizer, in particular for toilets

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765303A (en) * 1970-03-10 1973-10-16 Zahnradfabrik Friedrichshafen Involute tooth system for helical gears and finishing gear tool
US3738185A (en) * 1971-04-26 1973-06-12 Scott & Fetzer Co Sequential timer
US3834680A (en) * 1972-06-12 1974-09-10 W Walker Air conditioning apparatus for a vehicle cab
US4261930A (en) * 1976-06-14 1981-04-14 Byco Sales, Ltd. Evaporative cooling system
US5090261A (en) * 1989-11-21 1992-02-25 Asmo Co., Ltd. Geared motor
EP0838610A2 (de) 1994-10-17 1998-04-29 Venta Vertriebs Ag Antrieb für einen rotierenden Gegenstand wie Walze, Welle oder dergleichen
US5816523A (en) * 1995-02-17 1998-10-06 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Gear mechanism and webbing retractor
US5802921A (en) * 1996-08-13 1998-09-08 Rouverol; William S. Maximum power density gearing

Also Published As

Publication number Publication date
NO20011145L (no) 2001-08-29
NO320077B1 (no) 2005-10-17
CN1099534C (zh) 2003-01-22
KR100646717B1 (ko) 2006-11-17
ATE246321T1 (de) 2003-08-15
CA2347672A1 (en) 2000-07-06
WO2000039485A1 (de) 2000-07-06
DE59906459D1 (de) 2003-09-04
EP1141583B1 (de) 2003-07-30
JP4540852B2 (ja) 2010-09-08
CN1332830A (zh) 2002-01-23
EP1141583A1 (de) 2001-10-10
DE19958078A1 (de) 2000-07-06
NO20011145D0 (no) 2001-03-07
KR20010099994A (ko) 2001-11-09
CA2347672C (en) 2008-08-19
JP2002533636A (ja) 2002-10-08

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